ghost/TODO.md

Ghost - Implementation TODO

This document outlines the missing implementations needed to make Ghost a production-grade process injection detection framework.

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1. eBPF Detection (Linux)

Status: Stub implementation only
Priority: HIGH
Effort: 2-3 weeks

What's Missing:

• Actual eBPF program compilation (BPF bytecode)
• Kernel probe attachment for syscalls
• Ring buffer event processing
• Process tree tracking with real data
• Memory map change monitoring

Implementation Tasks:

• Write eBPF C programs for:
  • sys_ptrace monitoring
  • sys_process_vm_writev interception
  • mmap/mprotect tracking
  • Thread creation hooks
• Use libbpf-rs or aya for Rust eBPF integration
• Implement real ring buffer parsing
• Add CO-RE (Compile Once, Run Everywhere) support
• Create detection rules based on syscall patterns

Files to Modify:

• ghost-core/src/ebpf.rs (replace all stubs)
• Add bpf/ directory with C programs
• Update Cargo.toml with eBPF dependencies

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2. YARA Rules Engine Integration

Status: Not implemented
Priority: HIGH
Effort: 1 week

What's Missing:

• YARA rule compilation
• Memory scanning with YARA
• Custom rule loading from files
• Match result processing

Implementation Tasks:

• Add yara or yara-rust dependency
• Implement rule compilation from .yar files
• Create default ruleset for common malware patterns:
  • Metasploit payloads
  • Cobalt Strike beacons
  • Common shellcode signatures
• Scan process memory regions with compiled rules
• Parse and report YARA matches with metadata
• Add rule update mechanism

Files to Modify:

• ghost-core/src/yara_engine.rs (implement YaraEngine)
• Add rules/ directory with .yar files
• Update detection engine to use YARA results

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3. ML Behavioral Analysis

Status: Fake/mock implementation
Priority: MEDIUM
Effort: 3-4 weeks

What's Missing:

• Real ML model (currently returns random scores)
• Feature extraction from process behavior
• Model training pipeline
• Anomaly detection algorithms

Implementation Tasks:

• Design feature vector (memory patterns, API calls, timing)
• Collect training dataset:
  • Clean process samples
  • Known malware injection samples
• Train models using:
  • Random Forest for classification
  • Isolation Forest for anomaly detection
  • LSTM for temporal patterns
• Use smartcore or linfa for Rust ML
• Implement feature extraction in real-time
• Add model serialization/loading
• Create confidence scoring system

Files to Modify:

• ghost-core/src/behavioral_ml.rs (complete rewrite)
• ghost-core/src/neural_memory.rs (implement real neural net)
• Add models/ directory for trained models

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4. Windows API Hook Detection

Status: Incomplete
Priority: HIGH
Effort: 2 weeks

What's Missing:

• IAT (Import Address Table) hook detection
• Inline hook verification (compare with clean DLL)
• SSDT (System Service Descriptor Table) checks
• User-mode callback hooks

Implementation Tasks:

• Read and parse PE IAT from memory
• Compare IAT entries with disk file versions
• Detect inline hooks by checking first bytes of functions:
  • Look for JMP/CALL instructions
  • Compare with known-good signatures
• Read clean DLL copies from System32
• Implement trampoline detection
• Check for hardware breakpoints (DR registers)
• Detect SetWindowsHookEx chains

Files to Modify:

• ghost-core/src/hooks.rs (complete detect_inline_hooks)
• Add PE parser for IAT/EAT analysis
• Add function prologue comparison

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5. Thread Hijacking Detection

Status: Not implemented
Priority: MEDIUM
Effort: 1 week

What's Missing:

• Thread context inspection (RIP/EIP analysis)
• Suspicious thread start address detection
• Call stack unwinding and validation

Implementation Tasks:

• Enumerate all threads in target process
• Get thread context (registers)
• Check if RIP/EIP points to:
  • Non-image memory
  • Unbacked regions
  • RWX pages
• Perform stack walk to detect anomalies
• Compare thread start addresses with legitimate entry points
• Detect suspended threads with modified context

Files to Modify:

• ghost-core/src/thread.rs (implement detection logic)
• Add stack unwinding on Windows (DbgHelp)
• Add thread snapshot comparison

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6. APC Injection Detection

Status: Stub only
Priority: MEDIUM
Effort: 1 week

What's Missing:

• APC queue inspection
• User-mode APC monitoring
• Kernel-mode APC detection (requires driver)

Implementation Tasks:

• Use NtQueryInformationThread to enumerate APCs
• Check APC target addresses against legitimate modules
• Monitor for QueueUserAPC API calls
• Detect alertable wait states being exploited
• Track APC injection from untrusted processes
• Add signature for common APC shellcode loaders

Files to Modify:

• ghost-core/src/thread.rs (add APC inspection)
• Hook QueueUserAPC for real-time detection
• Add kernel driver project for kernel APC visibility

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7. Process Hollowing Detection (Advanced)

Status: Basic checks only
Priority: MEDIUM
Effort: 1-2 weeks

What's Missing:

• Deep PE header comparison (memory vs disk)
• Section hash verification
• Entry point validation
• Parent process verification

Implementation Tasks:

• Read PE from disk and compare with memory:
  • Section addresses
  • Import table
  • Entry point
  • Code section hashes
• Detect mismatched image base
• Check for suspicious parent/child relationships
• Validate process creation flags
• Detect "doppelgänging" technique
• Check PEB for manipulation
• Monitor for process suspension during startup

Files to Modify:

• ghost-core/src/hollowing.rs (expand detection)
• ghost-core/src/memory.rs (add PE comparison utils)
• Add cryptographic hashing for sections

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8. Threat Intelligence Integration

Status: Mock data
Priority: LOW
Effort: 1-2 weeks

What's Missing:

• Real IOC (Indicator of Compromise) feeds
• API integration with threat intel platforms
• IOC database with updates
• Reputation scoring from multiple sources

Implementation Tasks:

• Integrate with threat intel APIs:
  • VirusTotal
  • AlienVault OTX
  • MISP
  • Abuse.ch
• Implement IOC database (SQLite/PostgreSQL)
• Add automatic feed updates
• Hash-based lookups (SHA256 of memory regions)
• IP/Domain reputation checks
• Create caching layer for performance
• Add manual IOC import/export

Files to Modify:

• ghost-core/src/threat_intel.rs (implement real feeds)
• ghost-core/src/live_feeds.rs (add API clients)
• Add database schema for IOCs
• Implement async feed updates

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Additional Production Requirements

Performance Optimization

• Reduce memory scanning overhead (smart region filtering)
• Implement incremental scanning (only changed regions)
• Add multi-threaded process analysis
• Use memory-mapped files for large scans
• Cache detection results

Real-Time Monitoring

• Implement process creation callbacks (Windows ETW)
• Add memory change notifications
• Create event-driven detection pipeline
• Add filesystem watcher for DLL changes

Response Actions

• Implement process suspension/termination
• Add memory dumping for forensics
• Create alert notification system (email, webhook)
• Add automatic remediation options
• Generate detailed incident reports

Evasion Detection

• Detect debugger checks in target process
• Identify VM/sandbox detection attempts
• Monitor timing attacks
• Detect anti-analysis techniques

Kernel-Level Detection (Windows)

• Develop WDM/WDF kernel driver
• Implement kernel callbacks:
  • PsSetCreateProcessNotifyRoutine
  • PsSetLoadImageNotifyRoutine
  • ObRegisterCallbacks
• Add SSDT hook detection from kernel mode
• Monitor kernel memory modifications

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Testing Requirements

• Create test suite with real malware samples (in safe environment)
• Add unit tests for each detection method
• Implement integration tests with injection tools
• Add performance benchmarks
• Create CI/CD for Windows kernel driver signing
• Add fuzzing for input validation

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Documentation

• Write detailed API documentation
• Create detection methodology guide
• Add architecture diagrams
• Document MITRE ATT&CK coverage
• Write deployment guide
• Create troubleshooting guide

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Estimated Total Effort

Core Features: 12-15 weeks
Production Polish: 4-6 weeks
Testing & Documentation: 2-3 weeks

Total: ~4-6 months for full implementation